Katia weakens to tropical storm, to strengthen

Katia has weakened to a tropical storm as it moves across the Atlantic but forecasters say they expect it to strengthen again over the next two days.

Katia was about 930 miles (1497 kilometers) east of the Leeward Islands and moving west near 18 mph (30 kph) with maximum sustained winds late Thursday afternoon near 70 mph (113 kph), a 5 mph drop. It could become a major hurricane this weekend.

The U.S. National Hurricane Center said it's too early to tell if Katia will hit the U.S. It is expected to pass north of the Caribbean.

Meanwhile two other storm systems were developing over open water, in the Gulf of Mexico and in the Atlantic well north of Bermuda. But forecasters said it was too soon to tell if eithermight hit land.